i would love if Red Dead 2 was announced. but would dislike if it were PS4 exclusive. 

Why?

because RDR was on xbox too, and it was a fantastic game. it would be shitty if all those that played it on xbox didnt get to play the second (well, technicially third) game just because sony paid Rockstar some money to keep it away. it would also be shitty because what might happen in the future, it would be a scary thing if rockstart started selling out their games to console manufacturers. because sooner or later, you're gonna miss a game because of that practice. and it would be a big shame to miss out on a rockstart game. 

to ya'll getting way too hyped. its just gonna be Ratchet and Clank.

I'll take a stab.

1. Blizzard ports WoW to PS4
2. Riot games ports LoL to PS4 or some modified version thereof.
3. Ninja Theory goes back to PS exclusivity and whatever game they are working on.

Could be anything really. It's already been said on the PS Blog that Ratchet & Clank will have it's first gameplay shown this Fall, so that will likely be shown at the December 2014 event Sony are hosting. I doubt that's what this rumor is referring to.

I wouldn't be shocked if GT7 finally gets gameplay shown at that event too, since it could be a 2015 title and new stuff from Uncharted 4 will no doubt be shown as well.

Reveal could mean gameplay being shown for the 1st time of a game already announced, but if we're talking about a new game unveiling then there's plenty Sony could have, like anything from a 1st party studio that has yet to show any games for PS4.

I hope it's not something that was multiplat, but is going PS4 exclusive, even though I am a PS4 owner it just causes too many ructions and hate within the gaming community.
Now some new IP from a big 3rd party studio is fine, even a spiritual successor to something to an existing franchise (as with Bloodborne) is cool by me.

The reveal of Agent for PS4 would be awesome.
Personally I'm really intrigued to see what Sony's 1st party studios are working on, maybe Santa Monica's new IP wasn't really canceled and they're going to reveal some huge, futuristic Sci-Fi game, with an epic God of War style, set in an open world, with fully destructible scenery.
Like a Gods of the Future or something Marvel/Thor inspired and that's where all the Norse/GoW rumors have come from.

Maybe Horizon will finally be unveiled and it really lives up to the concept art that leaked.

Obviously not TLG.

If you recall past even 6th gen gaming was like this. Now its relaxed. But competition will get heated within coming years.

Better to keep our expectations low as possible, or the reality will bite us in the end. We have experience to much false rumor lately and getting hype for nothing. For now it's realistic to keep the hype only for E3, Gamescom and TGS, other then that will only add as a gift or bonuses in our hope for great games.

I don't want to get too hyped, but I guess I'm pretty confident that at least 1 new exclusive will be shown at the event.